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Olistostrome
Olistostrome is a sedimentary deposit composed of a chaotic mass of heterogeneous material, such as blocks and mud, that accumulates as a semifluid body by submarine gravity siliding or slumping the unconsolidated sediments. It is a mapable stratigraphic unit, but lacks true bedding but is intercalated amongst normal bedding sequences, as in the Tertiary basin of central Sicily.
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